CN220539707U - Engine oil pressure indicator - Google Patents
Engine oil pressure indicator Download PDFInfo
- Publication number
- CN220539707U CN220539707U CN202321943988.6U CN202321943988U CN220539707U CN 220539707 U CN220539707 U CN 220539707U CN 202321943988 U CN202321943988 U CN 202321943988U CN 220539707 U CN220539707 U CN 220539707U
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- China
- Prior art keywords
- oil pressure
- mandrel
- hole
- pressure indicator
- engine oil
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- 239000010705 motor oil Substances 0.000 title claims abstract description 44
- 239000003921 oil Substances 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000002199 base oil Substances 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an engine oil pressure indicator, which comprises a shaft sleeve, a mandrel and an indicating cap, wherein the shaft sleeve is used for being fixed on a carrier, and a mounting through hole is formed in the center of the shaft sleeve; the mandrel is arranged in the installation through hole in a penetrating way, the mandrel comprises a sealing installation part and a sliding fit part from bottom to top, and the sliding fit part comprises a piston part tightly matched with the installation through hole, an oil storage tank arranged along the circumferential direction of the mandrel and an oil passing part in clearance fit with the installation through hole from bottom to top; the indicating cap is arranged on the upper part of the shaft sleeve, and the top end of the mandrel is positioned in the indicating cap. According to the utility model, the O-shaped sealing ring is tightly pressed by the tray to be tightly attached to the inner surface of the conical groove, so that the phenomenon that engine oil overflows along the mandrel due to overlarge stress and damage of the O-shaped sealing ring is avoided; the matching structure of the mandrel and the shaft sleeve reduces the overflow of engine oil along the direction of the piston part, and the overflowed engine oil can also flow out along the carrier oil measuring channel, thereby ensuring that the engine oil pressure indicator does not leak.
Description
Technical Field
The utility model relates to the technical field of engine parts, in particular to an engine oil pressure indicator.
Background
In the prior art, the engine oil pressure indicator is the simplest monitoring equipment for normal operation of a diesel engine lubricating system, the engine oil pressure indicator of the single-cylinder diesel engine cannot be omitted, and the engine oil indicator is equipment with optimal cost performance from the aspect of cost. The enhancement degree of the diesel engine and the improvement of the user satisfaction degree provide higher requirements for a lubricating system of the diesel engine, firstly, the lubricating oil required to be lubricated in the working process of the diesel engine needs to have enough pressure so that all operating parts of the diesel engine are fully lubricated; secondly, the phenomenon that the diesel engine cannot leak the organic oil occurs. The diesel engine is easy to be stained with putty after leakage occurs, the appearance is in aberration, and the user acceptance is reduced. The conventional single-cylinder engine oil indicator is in two types of single-cylinder big diesel and small diesel, the size and structure of the engine oil indicator valve rod and the piston of the single-cylinder big diesel are complex, the size occupation space range is large, a special piston channel is required to be formed on the installation body of the engine oil indicator, and the cost is high and the structure is complex; the engine oil indicator of another kind of little firewood simple structure is with low costs, but influenced by the structure, the O type sealing washer of indicator is fragile, and relevant sealed faying face also easily leaks, causes the engine oil phenomenon of seepage, directly influences user's acceptance level.
Accordingly, there is a need for a reliable, practical oil pressure indicator that overcomes the above-described drawbacks.
Disclosure of Invention
The utility model aims to provide an engine oil pressure indicator.
According to one aspect of the present utility model, there is provided an oil pressure indicator comprising:
the shaft sleeve is used for being fixed on the carrier, and a mounting through hole is formed in the center of the shaft sleeve;
the mandrel is arranged in the installation through hole in a penetrating way, the mandrel comprises a sealing installation part and a sliding fit part from bottom to top, and the sliding fit part comprises a piston part tightly matched with the installation through hole, an oil storage groove arranged along the circumferential direction of the mandrel and an oil passing part in clearance fit with the installation through hole from bottom to top;
the indicating cap is arranged on the upper portion of the shaft sleeve, and the top end of the mandrel is located in the indicating cap.
Preferably, the bottom end of the shaft sleeve is provided with a conical groove communicated with the installation through hole, and the conical groove gradually expands downwards from the installation through hole.
Preferably, the seal mounting portion includes a tray located at the bottommost end of the spindle and a sleeve groove located between the tray and the piston portion and provided along the spindle circumference.
Preferably, an O-shaped sealing ring is arranged between the tray and the piston part, the O-shaped sealing ring is sleeved in the sleeved groove, and the diameter of the tray is not smaller than the outer diameter of the O-shaped sealing ring.
Preferably, when the engine works normally, the engine oil pressure acts on the bottom of the tray, the mandrel is jacked up by the oil pressure, and at the moment, the O-shaped sealing ring is pressed into the conical groove and is tightly attached to the inner surface of the conical groove.
Preferably, a first sealing gasket is arranged between the indicating cap and the shaft sleeve.
Preferably, a second gasket is provided between the sleeve and the carrier.
Preferably, the carrier is provided with an oil passage hole for installing an engine oil pressure indicator and a side oil passage leading to the inner cavity of the engine body, and the shaft sleeve is provided with a transverse through hole communicated with the side oil passage.
Preferably, a mandrel retainer ring is arranged at the top end of the mandrel, and the mandrel retainer ring is propped against the top of the shaft sleeve to limit the downward movement of the mandrel.
Preferably, the shaft sleeve comprises a mounting part arranged in the oil passage hole, a limiting part propped against the carrier and a sleeving part for indicating the sleeving of the cap from bottom to top.
Compared with the prior art, the engine oil pressure indicator provided by the utility model has the following beneficial effects:
due to the adoption of the technical scheme, the device has the advantages of simple structure, wide applicability and low cost, and the O-shaped sealing ring is tightly pressed by the tray to be tightly attached to the inner surface of the conical groove, so that the phenomenon that engine oil overflows along the mandrel due to overlarge stress and damage of the O-shaped sealing ring is avoided; the matching structure of the mandrel and the shaft sleeve reduces the overflow of engine oil along the direction of the piston part, and the overflowed engine oil can also flow out along the carrier oil measuring channel, thereby ensuring that the engine oil pressure indicator does not leak and improving the reliability of the engine oil indicator.
Drawings
The utility model is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a cross-sectional view of an oil pressure indicator of the present utility model;
FIG. 2 is an exploded view of the oil pressure indicator of the present utility model;
FIG. 3 is a perspective view of a mandrel of the present utility model;
fig. 4 is a perspective view of the bushing of the present utility model.
The sealing device comprises a shaft sleeve 1, a mounting part 11, a limiting part 12, a sleeve part 13, a mounting through hole 14, a conical groove 15, a transverse through hole 16, a mandrel 2, a sealing mounting part 21, a tray 211, a sleeve groove 212, a sliding fit part 22, a piston part 221, an oil storage groove 222, an oil passing part 223, a mandrel retainer ring 23, an indicating cap 3, a carrier 4, a 41, an oil passage hole 42, a side oil passage 5.O type sealing ring 6, a first sealing gasket and a second sealing gasket.
Detailed Description
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Referring to fig. 1 and 2, the present utility model discloses an oil pressure indicator, which is mounted on a carrier 4, wherein the carrier 4 may be a part of an oil passage of an organic oil, including a machine body or a gear chamber cover or a cylinder head cover, etc. The carrier 4 is provided with an oil passage hole 41 for mounting an oil pressure indicator and a side oil passage 42 leading to the inner cavity of the machine body. The engine oil pressure indicator comprises a shaft sleeve 1, a mandrel 2 and an indicating cap 3, wherein the indicating cap 3 is arranged on the upper part of the shaft sleeve 1, and the top end of the mandrel 2 is positioned in the indicating cap 3.
The shaft sleeve 1 is used for being fixed on the carrier 4, and a mounting through hole 14 is arranged in the center of the shaft sleeve 1. The shaft sleeve 1 comprises a mounting part 11 arranged in the oil passage hole 41, a limiting part 12 propped against the carrier 4 and a sleeving part 13 used for sleeving the indicating cap 3 from bottom to top. The diameter of the limiting part 12 is larger than that of the mounting part 11, and the mounting through hole 14 penetrates through the mounting part 11, the limiting part 12 and the sleeving part 13. The sleeve 1 is provided with a lateral through hole 16 communicating with the side oil passage 42, the lateral through hole 16 being provided in the mounting portion 11.
Referring to fig. 3, the mandrel 2 is inserted into the mounting through hole 14, the mandrel 2 includes a seal mounting portion 21 and a sliding fit portion 22 from bottom to top, and the seal mounting portion 21 includes a tray 211 located at the bottommost end of the mandrel 2 and a sleeve groove 212 located above the tray 211 and disposed along the circumferential direction of the mandrel 2. The sliding fit portion 22 includes, from bottom to top, a piston portion 221 that is tightly fitted with the mounting through hole 14, an oil reservoir 222 that is provided along the circumferential direction of the spindle 2, and an oil passage portion 223 that is clearance fitted with the mounting through hole 14. A small gap is left between the oil passing portion 223 and the inner wall of the mounting through hole 14. The three parts of the sliding fit portion 22 from bottom to top form a three-stage fit with the sleeve 1. The fitting groove 212 is located between the tray 211 and the piston portion 221 and is fitted with an O-ring seal 5. The outer diameter of the O-ring 5 is smaller than the diameter of the tray 211.
Referring to fig. 1 and 4, the bottom end of the mounting portion 11 of the boss 1 is provided with a tapered groove 15 communicating with the mounting through hole 14, the tapered groove 15 gradually expanding downward from the mounting through hole 14. The conical groove 15 can also be seen as a larger chamfer provided at the bottom end of the mounting hole 14, the width of which enables the O-ring 5 to be placed. A first sealing gasket 6 is arranged between the indicating cap 3 and the shaft sleeve 1, and a second sealing gasket 7 is arranged between the shaft sleeve 1 and the carrier 4. The first gasket 6 is located between the indicator cap 3 and the stopper 12, and the second gasket 7 is located between the carrier 4 and the stopper 12.
When the diesel engine works, the engine oil pressure acts on the bottom of the tray 211 of the mandrel 2, the mandrel 2 is jacked up by oil pressure, and the tray 211 moves up to press the O-shaped sealing ring 5 tightly, so that the O-shaped sealing ring is tightly attached to the inner surface of the conical groove 15. Because the inner surface of the conical groove 15 forms a certain included angle with the center of the mandrel 2, the engine oil pressure born by the mandrel 2 is decomposed into two parts, so that the pressure born by the O-shaped sealing ring 5 can be effectively reduced, and the damage is avoided or delayed. If the O-ring 5 is not tightly sealed, at least a certain amount of engine oil overflows upwards along the piston part 221 of the mandrel 2, enters the oil storage tank 222, and flows out along the side oil duct 42 of the carrier 4 after passing through the transverse through hole 16 of the sleeve 1.
In which a part of the engine oil flows upward toward the indicating cap 3 along the gap between the oil passing portion 223 and the mounting through hole 14. Since the indication cap 3 passes through the sealed space formed by the first sealing gasket 6 and the shaft sleeve 1, engine oil is sealed in the space and cannot overflow, the mandrel 2 is submerged under the action of gravity when the engine is not in operation, and the engine oil overflowed in the indication cap 3 flows back to the oil storage tank 222 along the gap between the oil passing part 223 and the mounting through hole 14 and then flows out through the side oil duct 42. The top end of the mandrel 2 is provided with a mandrel retainer ring 23, and the mandrel retainer ring 23 abuts against the top of the shaft sleeve 1 to limit the downward movement of the mandrel 2.
Because the diameter of the tray 211 is not smaller than that of the O-shaped sealing ring 5, the contact surface of the shaft sleeve 1 and the O-shaped sealing ring 5 adopts a chamfer structure, and the phenomenon that engine oil overflows along the mandrel 2 due to overlarge stress damage of the O-shaped sealing ring 5 is avoided. The three-section matching structure of the mandrel 2 and the shaft sleeve 1 reduces the overflow of engine oil along the direction of the piston part 221, and the overflowed engine oil can also flow out along the side oil duct 42 of the carrier 4, thereby ensuring that the engine oil pressure indicator does not leak, and changing the image of the 'dust head soil face' of the domestic single-cylinder diesel engine. The structure has no special requirement on the carrier 4, has simple structure and high cost performance, and has high practical value.
It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present utility model without departing from the spirit and scope of the utility model. Therefore, it is intended that the present utility model cover the modifications and variations of this utility model provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. An oil pressure indicator, comprising:
the shaft sleeve is used for being fixed on the carrier, and a mounting through hole is formed in the center of the shaft sleeve;
the mandrel is arranged in the installation through hole in a penetrating way, the mandrel comprises a sealing installation part and a sliding fit part from bottom to top, and the sliding fit part comprises a piston part tightly matched with the installation through hole, an oil storage groove arranged along the circumferential direction of the mandrel and an oil passing part in clearance fit with the installation through hole from bottom to top;
the indicating cap is arranged on the upper portion of the shaft sleeve, and the top end of the mandrel is located in the indicating cap.
2. The engine oil pressure indicator according to claim 1, wherein the bottom end of the sleeve is provided with a tapered groove communicating with the mounting through hole, and the tapered groove is extended gradually downward from the mounting through hole.
3. The oil pressure indicator according to claim 2, wherein the seal mounting portion includes a tray located at a lowermost end of the spindle and a nesting groove located between the tray and the piston portion and disposed circumferentially of the spindle.
4. The engine oil pressure indicator according to claim 3, wherein an O-ring is provided between the tray and the piston portion, the O-ring is sleeved in the sleeve groove, and the diameter of the tray is not smaller than the outer diameter of the O-ring.
5. The engine oil pressure indicator as set forth in claim 4, wherein when the engine is operating normally, the engine oil pressure acts on the bottom of the tray, the spindle is lifted by the oil pressure, and at this time, the O-ring is pressed into the tapered groove and closely contacts the inner surface of the tapered groove.
6. The oil pressure indicator according to claim 4, wherein a first gasket is provided between the indicating cap and the sleeve.
7. The oil pressure indicator according to claim 4, wherein a second gasket is provided between the sleeve and the carrier.
8. The engine oil pressure indicator according to claim 5, wherein the carrier is provided with an oil passage hole for mounting the engine oil pressure indicator and a side oil passage leading to an inner cavity of the engine body, and the sleeve is provided with a transverse through hole communicating with the side oil passage.
9. The engine oil pressure indicator as set forth in claim 8, wherein a spindle collar is provided at a top end of the spindle, the spindle collar abutting against a top of the sleeve for restricting downward movement of the spindle.
10. The engine oil pressure indicator according to claim 8, wherein the sleeve includes, from bottom to top, a mounting portion disposed in the oil passage hole, a stopper portion abutting against the carrier, and a fitting portion for indicating the cap fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321943988.6U CN220539707U (en) | 2023-07-22 | 2023-07-22 | Engine oil pressure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321943988.6U CN220539707U (en) | 2023-07-22 | 2023-07-22 | Engine oil pressure indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220539707U true CN220539707U (en) | 2024-02-27 |
Family
ID=89964397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321943988.6U Active CN220539707U (en) | 2023-07-22 | 2023-07-22 | Engine oil pressure indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220539707U (en) |
-
2023
- 2023-07-22 CN CN202321943988.6U patent/CN220539707U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |